流向电磁力作用下回旋体局部受热对流换热数值分析

李 辉; 刘宗凯; 周本谋; 江 勇

doi:10.11993/j.issn.1673-1948.2016.05.001

流向电磁力作用下回旋体局部受热对流换热数值分析

doi: 10.11993/j.issn.1673-1948.2016.05.001

1.
南京理工大学瞬态物理重点实验室, 江苏南京, 210094
2.
南京理工大学先进发射协同创新中心, 江苏南京, 210094

基金项目: 中国博士后基金(2015M571756)、江苏省自然科学青年基金(BK20140792)、江苏省博士后基金(1401123C)

详细信息

作者简介:
李辉(1990-), 男, 硕士, 主要从事电磁流体控制研究.

中图分类号: TJ630.1; O361; TK124
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出版历程
- 收稿日期: 2016-08-10
- 修回日期: 2016-08-31
- 刊出日期: 2016-10-20

Convective Heat Transfer on Solid of Revolution with Local Heating under Flow-Directional Electromagnetic Force

1.
Science and Technology on Transient Physics Laboratory, Nanjing University of Science and Technology, Nanjing 210094, China
2.
Advanced Launch Collaborative Innovation Center, Nanjing University of Science and Technology, Nanjing 210094, China

摘要

摘要: 文中结合对流换热和电磁流体推进技术的研究, 基于对流换热的能量方程和流场的基本控制方程, 利用开源软件Elmer对流向电磁力作用下低速回旋体局部加热对流换热特性进行了数值分析。研究结果表明, 在回旋体周围施加流向电磁力后, 回旋体对流换热功率增大。通过分析流场的流动情况发现, 随着电磁力增大, 电磁力覆盖范围内的流体获得更多的动能, 使得回旋体近壁面的高温流体更快地远离壁面, 壁面接触到更多的低温流体, 产生了更多的热交换, 对流换热功率增大。文中研究可为水中兵器热环境设计及反对抗措施提供参考。
- 回旋体 /
- 流向电磁力 /
- 对流换热 /
- 局部加热
Abstract: In this paper, based on the energy equation of convective heat transfer and the basic control equations of flow field, simulation is conducted with the software Elmer to analyze the local convective heat transfer characteristics of the solid of low velocity revolution under the action of flow-directional electromagnetic force. The results show that the power of convective heat transfer increases when the electromagnetic force is exerted around the solid of revolution, and with the increase in the electromagnetic force, the fluid within the scope of the electromagnetic force gains more motion energy to drive the high temperature fluid near the wall of the solid of revolution leaving away more rapidly, thus the wall can contact more low-temperature fluid, resulting in more heat exchange and higher convective heat transfer power. The research in this paper can provide reference for the design of the thermal environment of the underwater weapon and the counter measures.
- solid of revolution /
- flow-directional electromagnetic force /
- convective heat transfer /
- local heating

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参考文献(10)

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